Hi Howard,
Try writing a script on the exit event of the numeric field. For example:
1. Select the numeric field.
2. In the Script Editor, select the exit event from the Show list. If the script editor is not opened, go to the Window menu and select Script Editor.
3. Type the following FormCalc script:
$ = 0.475 * $
Where $ is the value of the current field. If you prefer working in JavaScript, change the Language type to JavaScript and type the following script instead.
this.rawValue = 0.475 * this.rawValue;
4. Preview the form.
5. Type a value then exit the field.
Regards,
Hélène
Adobe Systems